CVE-2018-25253 Termite 3.4 Denial of Service via Settings Buffer Overflow
Local attackers can crash the Termite terminal emulator by pasting a long string into the language settings field, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-25253?
CVE-2018-25253 is a medium-severity memory corruption vulnerability in Compuphase Termite, published on 4 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Termite 3.4 contains a buffer overflow vulnerability in the User interface language settings field that allows local attackers to cause a denial of service by supplying an excessively long string. Attackers can paste a 2000-byte payload into the Settings User interface language field to crash the application.
Weakness: CWE-787
Which versions are affected by CVE-2018-25253?
It affects 1 product.
Products include Compuphase Termite.
How do I fix CVE-2018-25253?
No fix has been published for CVE-2018-25253 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-25253 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25253 exists.
Sources
Also known as GHSA-2gxf-3x35-2g93.